Valve mechanism



J. RAU.

VALVE .MEGHANISM.

APPLICATION FILED JAN. I2. 1911.

1,325,331. Patented De0.16,1919.

4 SHEETSSHEET 1.

Ill/VENTOR 'Jp/M P17 J. RAU. VALVE M ECHANISI VI.

APPLICATION FILED JAN. 12. I917.

1,325,831. Y Pafentd De0.16,1919.

4 SHEETS-SHEET 2- EH01 mu 3 J. RAU.

VALVE MECHANISM. APPLICATION FILED JAN. 12. 1911.

1,325,331 Patented Dec. 16, 1919.

4 SHEETSSHEET 3.

A TTOR/VEKS 1. RAUx VALVE MECHANISM.

APPLICATION men JAN. 12. 1911.

Patented Dec. 16, 1919.

4 SHEETS-SHEET 4.

A TTOR/VEYS JOHN RAU, 0F INTDIANAPOLIS, INDIANA.-

VALVE MECHANISM.

Application filed January 12, 1917. serial No. 142,023.

To all whom it may concern:

Be it known that I, JOHN RAU, a citizen of the United States, and a resident of Indianapolis, county of Marion, and State of Indiana, have invented a certain new and useful Valve Mechanism; and I do hereby declare that the following is a full, clear, and exact description thereof, reference be ing had to the accompanying drawings, in which like letters refer to like parts.

The object of this invention is to facilitate and render more convenient the operation of machines for forming blanks for hollow glassware.

.The chief feature of the invention resides in a single valve mechanism arranged so as to control the various parts of the machine in operation, and at the same time lock and unlock the table on which the molds are mounted. To that end the movable valve member also serves as a bolt or means for locking and unlocking the table and when it is moved into position to lock the table, the valve or locking means automatically opens certain ports for the passage of compressed air which will cause the various steps of theoperation of the machine, as is desired when the table is in locking position. Thus it will introduce compressed air into the blank mold for pressing down the body of the glass around the former to form the mouth and neck of the mold or blank. At

the same time it will blow a blow opening in a blank in another blank mold. It will also actuate or spring into place a bafile head in connection with the mold in which the blow opening is being formed in the blank. On the other hand, when the movable valve member is moved out of locking engagement with the table, it will change the condition of the ports so as to bring about the proper exhaust for all of the air cylinders for actuating the plungers, blow pipe and battle head above referred to.

This renders the device very simple in operation as all that is necessary: is to 'move the mold table step by step in the proper position and then actuate the valve which, as stated, locks the table in true position and opens the compressed air ports so as to permit the proper passage of the air to the parts as above stated.

There are, in addition to the "foregoing, several other features of invention as will hereafter appear."

Specification of Letters Patent.

Patented Dec. 16,

The full nature of the invention will be understood from the accompanying drawings and the following description and h claims. 7

In the drawings, Figure 1 is a front elevation of the machine with parts in actuated position. Fig. 2 is an elevation of the right hand side of the machine with parts in idle position and parts broken away. Fig. 3 is a vertical section on the line 33 of Fig.

2, but on a larger scale. and with parts inmodified position. Fig. 4 is a horizontal section on the line H of Fig. 3. Fig. 5 is a vertical section on the line 5'5 of Fig. 1, part being shown in elevation. Fig. 6 is a similar section on the line 66 of Fig. 2, with the parts in their operated positions and a part partly in section and partly in elevation. Fig. 7 is a section on the line 7-7 of Fig. 2. Fig. 8 is a diagrammatic view of the more important parts of the machine showing their relative relations and some said parts being shown in section as indicated.

There is shown herein a .base 10 upon which a hollow stand ll is mounted which is integral with a central and upwardly extending hollow column 12 of smaller diameter.

These two hollow members 11 and 12 form machine here shown, are formed as indicated in Figs. 5 and 6, being inverted with the cavity of the hole extending entirely through the same vertically and being larger at the upper end of the mold and tapering downward. The lower end of the mold is annularly recessed to fit'around a segmental ring 20 secured upon the table. The lower end of the mold is also recessed to receive a neck mold or lift-over 21 for forming the neck of the glass blank 22.

neck of the blank is downward" and the upper end of "the mold is open and enlarged so that the gather, of glass can be inserted ,105 In this machine the blank is formed with the mold in inverted position'so that the into the upper end of the mold, as shown in Fig. 5. and then the neck of the blank is formed at the'lower end of the mold, by one operation, as illustrated in Fig. 5, and afterward an enlarged blow. 0 ning-23 is formed in the blank, as indicat in Fig. 6. Thereafter the blank is transferred to a blow mold, which is not here shown, and blown until the article is completed.

The table is rotated until one of the holes 24 through the mold table 15 comes in registry with a topplunger 25 on the upper end of a piston valve 26 mounted in a valve casing formed of two parts, 27 and 127. Said casing is vertically supported by a bracket 28 extending from the flange 17 on the top of the stand 11 and it slidably operates at its lower end through a bar 29 extending from the base 10 and in it thevalve is keyed so that it cannot turn, but can move vertically. It is forced upward or actuated by a spring 30 which surrounds the lower part of the valve and lies between the bar 29 and a collar 31 on the valve. The valve is returned or depressed by a pedal lever 32 acting downwardly upon the collar 31 which is fulcrumed on its end at. 33 in the upper end of a post 34 mounted on the base 10. Action on the pedal lever depresses the valve 26 and stop 25 so as to move it out of engagement with the mold table until 1 the table has been rotated so as to bring another mold into proper position and then the pedal is released and the spring 30 forces the valve 26 upward and the stop 25 engages a hole 24 in the table 15 and holds it temporarily.

The valve casing is formed of two vertical halves or parts 27 and 127, indicated by cross section in Fi 4, which together surround the valve an are held together by bolts 40, see Fig. 1. Bolts 41 secure the casing to the support 28. A stufiing box 42 is mounted on the lower-end of the casing and the stufiing box 43 is mounted on an upper projection 44 on the support 28, as seen in Fig. 3.

There is an exhaust passage 45 longitudinally of the valve in communication with three transverse exhaust passageways 46 extending diametrically through the valve.

The valve mechanism controls the pas-- sage of air from the air reservoir in the hollow columns 11 and 12 for the various parts of the machine, as made clear in the diagram in Fig. 8. From said reservoir a pipe 50 leads to a port 51 in'the valve casmg, as shown in Fig. 3. There is also another pipe 52 leading from thereservoir to aport 53 in the valve casing. There is also a pipe 54 in communication with a port 55 which at times is in communication with the port 51 through a \port 56 in the valve,

when said valve is in the position shown in Fig. 3. That occurs during the formation manner of the blanks. There is also a pipe 57 communicating with a port 58 in v the casing and associated with the port 53 by means of a port 59 in the valve, as shown in Fig. 3.

There is also a pipe 60 communicating with a port 61 in the valve and a pipe 62 communicating with a port 63 in the valve.

To a bracket 64 secured to the flange 17, as shown in Fig. 1, there is connected an air cylinder 65 in which a press plunger 66 is located and said plunger has a plunger head 67 adapted to register with and pass through a hole 68 in the table 15, as seen in Fig. 5. The air pipe 54- leads from the valve mechanism heretofore described to the bottomof said cylinder and the exhaust pipe 60 leads from the upper end of said cylinder to the valve mechanism. The plunger head 67 is hollow, as shown in Fig. 5, and it is cooled by air entering it through a pipe 70 whichleads from the hollow air stand 11. The air exhausts from the head 67 through exhaust outlets 71.

In the vertical alinement with .the plunger cylinder .65 and located above the mold table there is mounted a blow head 73 adapted to clpse the upper end of the mold, as shown in Fig. 5 and enable the air coming through the blow head to blow the gather of glass downward for forming the neck of the blank and solidifying the blank. Said blow head is secured to the lower end of a tube 74 vertically slida'ble in an 'arm 75 extending from a collar 76 slidably mounted on the column 12 and held in adjusted position by means not shown. The pipe 74 is held elevated'by a spring 7 7 surrounding it and resting upon the arm 75 below and against a collar 78 on the upper part of the tube 74. The tube 74 and blow head are depressed by a hand lever 79 which rests upon the collar 78 of the tube and at its inner end at 80 is fulcrumed to a post 81 extending up from the collar-76. The upper end of the tube 74 is connected bya flexible tube 82 with the upper part of the air column 12, as seen in Fi 1.

e plunger cylinder 65 is about 90 from the valve vmechanism. Immediately behind the valve mechanism. and, therefore, about 90 from the plunger cylinder heretofore described there is another air cylinder 85 mounted on the arm 28 and in connection" with the valve casing 27, as seenin Fig. 2,

and having in it to be" operated by it a tution.

the pipe 62. An air pipe 191 leads from the air stand 11 to the lower end of the tubular phmger 86 for supplying air through the blow pipe 87. WVhen the parts are in the position shown in Fig. 6, air coming through the blow pipe 87 forms the blow opening 23 in the blank, as therein shown. During such operation the upper endof the mold is closed by a baffle plate or head 91 on the lower end of a rod 92 vertically reciprocable in an air cylinder 93 mounted on a bracket 94 extending from the collar 76, as seen inFig. 2. Air is supplied by the upper end of the cylinder 93 through a pipe 95 extending from the air column 12 and in direct communication with the pipe-57 below. An air pipe 96 connects the lower end of the cylinder 93 with the pipe extend-' ing through the column 12 in communication withthe pipe 62 below. Pipes 50 and 52 have hand operated valves 97, as seen in Figs. 1' and 2, for" closing. the same when the machine is not in operation.

Operation: When it is desired to operate the machine the valves 97 are opened admitting the compressed air for operating the machine. A mold onthe mold table in advance of the blow head 73 is supplied with a gather of glass which is inserted in the upper end of the mold, as shown in Fig. 5. Then the table is moved to bring said mold under aid blow \head 73 and during such movement of the table, the foot lever 32 is held depressed by holding the stop 25 away from the table. When the mold is brought under the blow head 73, the hole 24 in the table will be over'the stop 25 and by releasing the pedal lever 32, the spring 30 will force the valve 26 upward and the stop 25 will enter the hole 24 of the table and hold the table in fixed and true posi- Such upward movement of the valve will bring it into the position shown in Fig. 3 and establish communication between pipes 50 and 54 so that compressed air from the reservoir in the stand 11 or column 12 will enter the cylinder 65 and move the plunger head 67 up into the lower end of the mold, as shown in Fig. 5, to form the neck of the blank. At the same time the operator pulls down on the lever 79, see Fig. 1, and

brings the blow head 73 down on the 'mold, closing the upper end thereof, and through air entering the pipes 82 and 74 upon the upper end of the glass in the mold, the glass is forced down around the'plunger head 67 and thatmakes the body of glass compact and causes 'the neck.of the blank to be pressed satisfactorily.

After the above step in the operation is completed, the operator depresses the pedal lever 32 and releases the hand lever 79 which causes the removal of the plunger head 67 and the blow head 73, Then the table is moved another step until said previously filled mold is brought beneath the baffle plate 91 and a second mold previously supplied with a gather of glass is brought under the blow head 73. Then upon the release of the pedal lever and the upward movement of the valve 26 communication will again be established between pipes 50 and 54 and between pipes 52 and 57. The second gather of glass will be treated in the manner above described and the properly formed blank in the first mentioned mold which is now under the baffle plate 91 will be treated as shown in Fig. 6. That is, air passing through pipes 52 and 57 will enter the cylinder 85 and move the tubular plunger 86 upward to bring the tube 87 into the mouth or lower end of the mold, as shown in "F ig. 6, and at the time the air in said pipe 57 will pass upward through the stand 11 and column 12 and through pipe 95 and depress the baffle plate 91. The baffle plate with the tubular pipe 86 excepting when the latter is elevated as shown in Fig. 7

The formation of the blanks of this machine include two steps in the operation. While one step of the operation is being performed on oneblank, the other step is being-performed on another blank whereby the external form of the blank is determined andparticularly the neck thereof. In the, second step the internal form of the blank is determined and without removing the blank from the mold. v

When the valve 26 is depressed by the pedal lever the compressed air communicates between pipes 50 and 54 and the pipes 52 and 57 are disconnected and then the upper exhaust passage 46 is in registry with the tube 54. The middle exhaust passage 46 is in, registry with the tube 57, while the.

sure .and particularly exhausting the cyl'in-.

ders 65 and 85.

When the valve 26 is in its elevated po- 1 sition,, as shown. in Fig. 3, it causes simultaneous" actuation of the plunger for forming the mouth of themold of the blank, as in Fig. 5, as pipes 50'and 54 are in communica:

tion'with each other, and simultaneous action of the tubular plunger 86 and blow pipe 87, and also baflie plate 91 as pipes 52 and 57 are in communication with each other. While the valve i in its upper position, the middle exhaust passage 46 communicates with pipe 60 which exhausts the upper end of the cylinder 65. Also the exhaust passage 46 is in communication with pipe 62 whereby the upper end of the cylinder and the lower end of the cylinder 93 are exhausted.

Also when the valve is in its lower position, the chamber 56 therein connects pipes 50 and 60 whereby the plunger 66 is positively returned to its lower position; also chamber 59 connects pipes 52 and 62 which positively returns the tubular plunger 86 and blow pipe 87 and also returns and elevates the bafiie head 91.

Thus' it is seen that the operation of this machine may be very rapid and it may be operated by a single operator. Aside from his turning-the mold table with one hand, depressing the valve with his foot while he is turning the table and bringing down the blow head with his other hand, all the other parts and operations of the machine are automatic and capable of rapidly turning out work.

Attention should be called to another feature of the invention which is disclosed in Fig. 4, namely, that the valve member 26 is more deeply seated in the part 27 ofthe valve casing than the part 127. That is, the seal or recess in the part 27 extends more than half way about the valve 26 so that said valve will be held in place in the casing member 27 ,when the other casing member 127 may be, for any purpose removed. All of the ports above referred to are also located in the casing 127 so that "by removing said casing member you can get into all of the ports of the valve mechanism.

The invention claimed is:

1. A glass blank forming machine including .a rotatable table, a plurality of blank molds thereon, a plunger for pressing the mouth and neck of the blanks in said molds, a cylinder for actuating said plunger, a blow pipe for introducing air into the mouth of a blank after it hasbeen pressed to form a blow opening in the blank, a cylinder for moving said blow pipe into blowing position, a source of compressed air. and a valve mechanism for controlling the air and arranged in one position to engage and hold the table from rotation and'when in such position to permit the admission of air to one end of each of said cylinders forjactuating said plunger and blow pipe and at the same time to exhaust the air from the other end of each of said cylinders andwhen in, position to disengage said table, to permit the admission of air into the last-mentioned end of each of said cylinders and to exhaust it from the other end thereof for returning said plunger.

2. A glass'blank forming machine including a rotatable table, a plurality of blank molds thereon, a plunger for pressing the mouth and neck of the blanks in said molds, a cylinder for actuating said plunger, ablow pipe for introducing air into the mouth of a blank after it has been pressed to form a blow opening in the blank, a cylinder for moving said blow pipe into blowing position, a source of compressed air, a valve mechanism for controlling the air and ar ranged in one position to engage and hold the table from rotation and when in such position to permit the admission of air to one end of each of said cylinders for actuating said plunger and blow pipe and at the same time to exhaust the air from the other end of each of said cylinders and when in position to disengage said table, .to permit the admission of air into the last-mentioned end of each of said cylinders and to exhaust it from the other end thereof for returning said plunger, a spring for forcing said valve into engagement with said table, and a lever for disengaging said Valve from the table and holding it disengaged.

3. A glass blank forming machine including a rotatable table, a plurality of blank molds thereon, a plunger for pressing the mouth and neck of the blanks in said molds, a cylinder for actuating said plunger, a blow pipe for introducing air into the mouth of a blank after it has been pressed to form a blow opening in the blank, acylinder for moving said blow pipe into blowing position, a source of-compressed air, a baflie head for closing the upper end of the mold while the blow opening is bein formed in the blank, a cylinder for actuating the same, and a valve mechanism for controlling the air and arranged in one position to engage and hold the table from rotation and when in such position to permit the admission of air to one end of each of said cylinders for actuating said plunger and blow pipe and at the same time to exhaust the air from the other end of each of said cylinders and L when in position to disengage said table, to permit the admission of air into the lastmentioned end of each of said cylinders and to exhaust it from the other end thereof for returnin said-plunger.

a plurality of blank mouth and neck of the blanks in said molds, a cylinder for actuating said plunger, a blow pipe for introducing air into the mouth of a blank after it has been pressed to form a. blow opening in the blank, a cylinder for moving said blow pipe into blowing osition, a source of compressed air, a baflle ead for ass'blank formin machine including a rotatable table, molds thereon,--a plunger for pressing the closing'theupper end of the mold while the blow opening 15 bein formed in "the blank, a cylinder for actua ing the same, a valve mechanism for controlling the air and arrangedin one position to engage and hold the table from rotation and when in such position to permit the admission of air to one end of each of said cylinders for actuating said plunger and blow ipe and at the same time to exhaust air IOIIl the other end of each of said cylinders and when in position to disengage said table, to permit the admission of air into the last-mentioned end of each of said cylmders and to exhaust it from the other end thereof for returning 15 In witness whereof I have hereunto af- 20 fixed my signature.

' JOHN RAU. 

